[bad_user]

I've also signed up for a Firefox sync account ever since it was launched, and the only emails I get are the security notifications about new sign-ins.

The Firefox Account has no communication options and does not send promotional emails: https://accounts.firefox.com/settings

Not sure what lists you're subscribed to, but they aren't part of this account. What mailing lists have you subscribed to or what service are you talking about?

[saberworks]

They absolutely do send "promotional" emails and in the communication preferences there was a huge list of different newsletters (which always seems to change). I'm not the only one getting this spam email:

https://old.reddit.com/r/firefox/comments/fggla9/get_the_f_o...

[ohyeshedid]

From that site: https://i.imgur.com/tHTSKXL.png

Check the bottom. When you clickthrough the Email preferences link, you're presented with a list of several email lists you can subscribe/unsubscribe from.

Edit: I was subscribed to a couple lists I never directly opted-in to receive, though I never received any emails from those lists.

[bad_user]

Ah, the problem is that I don't have that option — must be a regional thing:

https://imgur.com/a/BR1ILDe

[ohyeshedid]

Just happened to catch this, thanks for the response. That's interesting that it's possibly regional, and I'm unsure why. They weren't sales emails, it was just newsletters about various Mozilla bits.